2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 7: Energy Production, Environmental & Multiscale
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 528 pages |
| ISBN: | 978-1-987820-09-6 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
CD shopping page
Applications of Electromagnetic Measurement Methods in Oil and Gas Industry
Abdollah Esmaeili1; Mohammed Abdalla Ayoub2;1UNIVERSITI TEKNOLOGI PETRONAS (UTP), Omidieh, Iran (Islamic Republic of Iran); 2UNIVERSITI TEKNOLOGI PETRONAS (UTP), Tronoh, Malaysia;
Type of Paper: Regular
Id Paper: 93
Topic: 15
Abstract:
When hydrocarbons accumulate in reservoirs, the reservoir rocks and a large volume of rock associated with the reservoirs undergo resistance changes. This method relates generally to the field of geophysical prospecting for the purposes of hydrocarbon exploration, development, and production. It also includes measuring magnetic field gradient in at least two orthogonal directions in response to the induced electromagnetic field and determining an electric field response. Specifically, this method is a used for determining the difference between the electrical resistance of a reservoir at an initial time and its electrical resistance at one or more later times, and relating that difference to production of hydrocarbons from the reservoir during the interim period.
Electromagnetic methods are now being used to provide images of subsurface resistance on the reservoir scale. These images provide, for the first time, observation of the porosity distribution and fluid content on the same scale as the reservoir. They are being used to identify bypassed oil and unanticipated breakthrough, to monitor sweep efficiency, and to map features.
All such information could only be previously inferred from measurements within the well or from production data from the well. For monitoring production and enhanced recovery processes, when it can be assumed that the porosity is essentially constant and when there is a resistivity contrast in the different fluids or phases involved, the imaged resistivity is a direct mapping of the changes in saturation.
In this paper, we discuss the methods for electromagnetic measurement approaches and its application in oil and gas industry.